<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
登录页面,请先登录

<h3 color=red th:text="${msg}"></h3>
<form method=post action="login">
    用户名:<input type=text name=name /><br/>
    密码:<input type=text name=password /><br/>
    <input type=submit value=登录 />
</form>
</body>
</html>